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Monosaccharide sugar
Galactose (/ɡəˈlæktoʊs/, galacto- + -ose, sometimes abbreviated gal) is a common monosaccharide, i.e. a simple sugar. It is classified as a reducing hexose
Galactose
Chemical compound
Galactose-α-1,3-galactose, commonly known as alpha gal and the Galili antigen, is a disaccharide (a type of carbohydrate) formed from two galactose molecules
Galactose-α-1,3-galactose
Galactose oxidase (D-galactose:oxygen 6-oxidoreductase, D-galactose oxidase, beta-galactose oxidase; abbreviated GAO, GAOX, GOase; EC 1.1.3.9) is an enzyme
Galactose_oxidase
Index of enzymes associated with the same name
Galactose 1-dehydrogenase may refer to: ʟ-Galactose 1-dehydrogenase ᴅ-Galactose 1-dehydrogenase Galactose 1-dehydrogenase (NADP+) This set index page
Galactose_1-dehydrogenase
Acquired allergy resulting from tick bites
acquired allergy to the epitope of the carbohydrate molecule galactose-alpha-1,3-galactose ("alpha-gal"). Reactions can be life-threatening, and typically
Alpha-gal_syndrome
Medical condition
Galactose-1-phosphate uridylyltransferase deficiency (classic galactosemia) is the most common type of galactosemia, an inborn error of galactose metabolism
Galactose-1-phosphate uridylyltransferase deficiency
Galactose-1-phosphate_uridylyltransferase_deficiency
Metabolic disorder inhibiting the breakdown of galactose
disorder that affects an individual's ability to metabolize the sugar galactose properly. Galactosemia follows an autosomal recessive mode of inheritance
Galactosemia
Metabolic enzyme which converts galactose into glucose
Galactose-1-phosphate uridyltransferase (or GALT, G1PUT) is an enzyme (EC 2.7.7.12) responsible for converting ingested galactose to glucose. Galactose-1-phosphate
Galactose-1-phosphate uridylyltransferase
Galactose-1-phosphate_uridylyltransferase
Carbohydrate
Lactose is a disaccharide composed of galactose and glucose and has the molecular formula C12H22O11. Lactose makes up around 2–8% of milk (by mass). The
Lactose
Class of enzymes
The enzyme UDP-glucose 4-epimerase (EC 5.1.3.2), also known as UDP-galactose 4-epimerase or GALE, is a homodimeric epimerase found in bacterial, fungal
UDP-glucose_4-epimerase
Medical condition
Glucose-galactose malabsorption is a rare condition in which the cells lining the intestine cannot take in the sugars glucose and galactose, which prevents
Glucose-galactose malabsorption
Glucose-galactose_malabsorption
One of the five major nucleosides in nucleic acids
role in the glycolysis pathway of galactose. There is no catabolic process to metabolize galactose. Therefore, galactose is converted to glucose and metabolized
Uridine
Protein-coding gene in the species Homo sapiens
Galactose mutarotase (aldose 1-epimerase) (gene name GALM) is a human enzyme that reversibly converts α-aldose to the β-anomer. This enzyme catalyzes
Galactose_mutarotase
Sweet-tasting, water-soluble carbohydrates
Simple sugars, also called monosaccharides, include glucose, fructose and galactose. Compound sugars, also called disaccharides or double sugars, are molecules
Sugar
Family of glycoside hydrolase enzymes
hydrolase enzyme that catalyzes hydrolysis of terminal non-reducing β-D-galactose residues in β-D-galactosides. (This enzyme digests many β-Galactosides
Β-Galactosidase
Experimental pop band
its use of falsetto. The trio self-released their limited-run debut EP, Galactose, under their original moniker, The Sweet Science, before giving up the
The_Dead_Science
In enzymology, a d-galactose 1-dehydrogenase (EC 1.1.1.48) is an enzyme that catalyzes the chemical reaction D-galactose + NAD+ H+ H+ D-galactono-1
D-galactose_1-dehydrogenase
Class of enzymes
dTDP-D-galactose The enzyme characterised from Streptococcus faecalis combines thymidine triphosphate and α-D-galactose 1-phosphate to give dTDP-D-galactose
Galactose-1-phosphate thymidylyltransferase
Galactose-1-phosphate_thymidylyltransferase
Class of enzymes
undecaprenyl-phosphate galactose phosphotransferase (EC 2.7.8.6) is an enzyme that catalyzes the chemical reaction UDP-galactose + undecaprenyl phosphate
Undecaprenyl-phosphate galactose phosphotransferase
Undecaprenyl-phosphate_galactose_phosphotransferase
Species of tick
triggered by an IgE antibody to the mammalian oligosaccharide galactose-alpha-1,3-galactose (alpha-gal). A study published in 2019 discovered alpha-gal
Amblyomma_americanum
Milk with lactose removed
milk is a form of milk with the lactose absent, usually replaced with galactose and glucose. Lactose-free milk is usually consumed by individuals who
Lactose-free_milk
UDP-galactose—UDP-N-acetylglucosamine galactose phosphotransferase (EC 2.7.8.18) is an enzyme that catalyzes the chemical reaction UDP-galactose +
UDP-galactose—UDP-N-acetylglucosamine galactose phosphotransferase
UDP-galactose—UDP-N-acetylglucosamine_galactose_phosphotransferase
Class of plant and fungal polysaccharides consisting of mannose and galactose monomers
alpha-D-galactose, (i.e. 1-6-linked alpha-D-galactopyranose). In order of increasing number of mannose-to-galactose ratio: fenugreek gum, mannose:galactose ~1:1
Galactomannan
Chemical compound
Uridine diphosphate galactose (UDP-galactose) is an intermediate in the production of polysaccharides. It is important in nucleotide sugars metabolism
Uridine_diphosphate_galactose
Enzyme
L-galactose 1-dehydrogenase (EC 1.1.1.316, L-GalDH, L-galactose dehydrogenase) is an enzyme with the systematic name L-galactose:NAD+ 1-oxidoreductase
L-galactose_1-dehydrogenase
Chemical compound
Galactitol (dulcitol) is a sugar alcohol, the reduction product of galactose. It has a slightly sweet taste. In people with galactokinase deficiency,
Galactitol
Metabolic pathway for the catabolism of D-galactose
β-D-galactose to α-D-galactose since this is the active form in the pathway. Next, α-D-galactose is phosphorylated by galactokinase to galactose 1-phosphate
Leloir_pathway
Enzyme class
In enzymology, a galactose 1-dehydrogenase (NADP+) (EC 1.1.1.120) is an enzyme that catalyzes the chemical reaction D-galactose + NADP+ H+ H+
Galactose 1-dehydrogenase (NADP+)
Galactose_1-dehydrogenase_(NADP+)
Chemical compound
D-Galactose-1-phosphate is an intermediate in the intraconversion of glucose and uridine diphosphate galactose. It is formed from galactose by galactokinase
Galactose_1-phosphate
Inability to digest lactose
lactase in the small intestines to break lactose down into glucose and galactose. There are four types: primary, secondary, developmental, and congenital
Lactose_intolerance
Class of enzymes
(EC 2.4.1.133) is an enzyme that catalyzes the chemical reaction UDP-galactose + O-beta-D-xylosylprotein ⇌ {\displaystyle \rightleftharpoons } UDP +
Xylosylprotein 4-beta-galactosyltransferase
Xylosylprotein_4-beta-galactosyltransferase
Chemical compound
linkage between galactose and glucose (D-Gal-(α1→6)-D-Glc). It differs from lactose in the chirality of the carbon where the galactose ring is closed and
Melibiose
Enzyme
(phosphotransferase) that facilitates the phosphorylation of α-D-galactose to galactose 1-phosphate at the expense of one molecule of ATP. Galactokinase
Galactokinase
Class of enzymes
reaction UDP-galactose + sphingosine UDP psychosine The enzyme transfer a galactose sugar from uridine diphosphate galactose to sphingosine
Sphingosine beta-galactosyltransferase
Sphingosine_beta-galactosyltransferase
Class of enzymes
(EC 2.4.1.47) is an enzyme that catalyzes the chemical reaction UDP-galactose + N-acylsphingosine ⇌ {\displaystyle \rightleftharpoons } UDP + D-galactosylceramide
N-acylsphingosine galactosyltransferase
N-acylsphingosine_galactosyltransferase
Medical condition
Galactose epimerase deficiency, also known as GALE deficiency, Galactosemia III and UDP-galactose-4-epimerase deficiency, is a rare, autosomal recessive
Galactose epimerase deficiency
Galactose_epimerase_deficiency
In enzymology, a galactose-6-phosphate isomerase (EC 5.3.1.26) is an enzyme that catalyzes the chemical reaction D-galactose 6-phosphate ⇌ {\displaystyle
Galactose-6-phosphate isomerase
Galactose-6-phosphate_isomerase
Fructose (also called levulose) Fucose Fuculose Glycoaldehyde Glyceraldehyde Galactose Glucose (also called dextrose) Gulose Idose Lyxose Mannose Mannoheptulose
List_of_sugars
Chemical compound
hydrolyzed to glucose and galactose, tagatose can then be produced commercially from the resulting galactose. The galactose is isomerized under alkaline
Tagatose
Chemical compound
a deoxy sugar) and the L-configuration. It is equivalent to 6-deoxy-L-galactose. In the fucose-containing glycan structures, fucosylated glycans, fucose
Fucose
Class of enzymes
enzymology, a galactose-6-sulfurylase (EC 2.5.1.5) is an enzyme that catalyzes the chemical reaction Eliminates sulfate from the D-galactose 6-sulfate residues
Galactose-6-sulfurylase
DTDP-4-amino-4,6-dideoxy-D-galactose acyltransferase (EC 2.3.1.210, TDP-fucosamine acetyltransferase, WECD, RFFC) is an enzyme with systematic name
DTDP-4-amino-4,6-dideoxy-D-galactose acyltransferase
DTDP-4-amino-4,6-dideoxy-D-galactose_acyltransferase
Chemical compound
N-Acetylgalactosamine (GalNAc), is an amino sugar derivative of galactose. In humans it is the terminal carbohydrate forming the antigen of blood group
N-Acetylgalactosamine
TDP-3-keto-6-deoxy-D-galactose-3-aminotransferase, RavAMT, TDP-3-keto-6-deoxy-D-galactose 3-aminotransferase, TDP-3-dehydro-6-deoxy-D-galactose 3-aminotransferase)
DTDP-3-amino-3,6-dideoxy-alpha-D-galactopyranose transaminase
DTDP-3-amino-3,6-dideoxy-alpha-D-galactopyranose_transaminase
Class of enzymes
In enzymology, a dTDP-galactose 6-dehydrogenase (EC 1.1.1.186) is an enzyme that catalyzes the chemical reaction dTDP-D-galactose + 2 NADP+ + H2O ⇌ {\displaystyle
DTDP-galactose 6-dehydrogenase
DTDP-galactose_6-dehydrogenase
Chemical compound
Raffinose is a trisaccharide derived from galactose, glucose, and fructose. Raffinose can be hydrolyzed to D-galactose and sucrose by the enzyme alpha galactosidase
Raffinose
Complex sugar
condensation of one molecule of each of the monosaccharides glucose and galactose, whereas the disaccharide sucrose in sugar cane and sugar beet, is a condensation
Disaccharide
Class of enzymes
include galactose-1-phosphate uridylyltransferase, galactose 1-phosphate uridylyltransferase, alpha-D-galactose 1-phosphate uridylyltransferase, galactose 1-phosphate
UTP—hexose-1-phosphate uridylyltransferase
UTP—hexose-1-phosphate_uridylyltransferase
Medical condition
associated with diminished ability to metabolize galactose due to a partial deficiency of the enzyme galactose-1-phosphate uridylyltransferase. DG differs
Duarte_galactosemia
Class of enzymes
UDP-glucose + alpha-D-galactose 1-phosphate ⇌ {\displaystyle \rightleftharpoons } alpha-D-glucose 1-phosphate + UDP-galactose Thus, the two substrates
UDP-glucose—hexose-1-phosphate uridylyltransferase
UDP-glucose—hexose-1-phosphate_uridylyltransferase
Simple ketonic monosaccharide found in many plants
it is one of the three dietary monosaccharides, along with glucose and galactose. Fructose is found in honey, tree and vine fruits, flowers, berries, and
Fructose
Protein family
Galactose-3-O-sulfotransferases is a family of several mammalian galactose-3-O-sulfotransferase proteins. Gal-3-O-sulfotransferase is thought to play a
Galactose-3-O-sulfotransferase
Galactose-3-O-sulfotransferase
Chemical compound
Phenyl-d-galactopyranoside is a substituted galactoside. Lac operon Fischer L, Scheckermann C, Wagner F (April 1995). "Purification and characterization
Phenyl-D-galactopyranoside
Metabolic process
Galactolysis refers to the catabolism of galactose. Galactolysis is a metabolic process by which galactose is catabolized into glucose derivatives. This
Galactolysis
Class of enzymes
synthase (EC 2.4.1.46) is an enzyme that catalyzes the chemical reaction UDP-galactose + 1,2-diacyl-sn-glycerol ⇌ {\displaystyle \rightleftharpoons } UDP +
Monogalactosyldiacylglycerol synthase
Monogalactosyldiacylglycerol_synthase
Chemical compound
Methyl-α-D-galactose is a constituent of Eleutherococcus senticosus. No authors Listed (2021-05-17). Eleuthero. NBK501806 (1st ed.). Drugs and Lactation
Methyl-α-D-galactose
Simple sugars such as glucose and fructose
monosaccharides include glucose (dextrose), fructose (levulose), and galactose. Monosaccharides are the building blocks of disaccharides (such as sucrose
Monosaccharide
Chemical compound
polysaccharide consisting of polymerized galactose. In general, galactans in natural sources contain a core of galactose units connected by α(1→3) or α(1→6)
Galactan
Tn antigen is expressed in most carcinomas. Addition of an additional galactose monosaccharide creates a disaccharide antigen: the Thomsen-Friedenreich
Tn_antigen
Protein found in humans
UDP-galactose translocator is a protein that in humans is encoded by the SLC35A2 gene. Somatic loss-of-function variants in the SLC35A2 gene were originally
UDP-galactose_translocator
Class of enzymes
(EC 2.4.1.44) is an enzyme that catalyzes the chemical reaction UDP-galactose + lipopolysaccharide ⇌ {\displaystyle \rightleftharpoons } UDP +
Lipopolysaccharide 3-alpha-galactosyltransferase
Lipopolysaccharide_3-alpha-galactosyltransferase
Treatment for constipation and hepatic encephalopathy
from the milk sugar lactose, which is composed of two simple sugars, galactose and glucose. It is on the World Health Organization's List of Essential
Lactulose
Protein family
In molecular biology, the galactose binding lectin domain is a protein domain. It is found in many proteins including the lectin purified from sea urchin
Galactose binding lectin domain
Galactose_binding_lectin_domain
Class of enzymes
(EC 2.4.1.50) is an enzyme that catalyzes the chemical reaction UDP-galactose + procollagen 5-hydroxy-L-lysine ⇌ {\displaystyle \rightleftharpoons }
Procollagen galactosyltransferase
Procollagen_galactosyltransferase
Class of enzymes
(EC 2.4.1.45) is an enzyme that catalyzes the chemical reaction UDP-galactose + 2-(2-hydroxyacyl)sphingosine ⇌ {\displaystyle \rightleftharpoons } UDP
2-Hydroxyacylsphingosine 1-beta-galactosyltransferase
2-Hydroxyacylsphingosine_1-beta-galactosyltransferase
Index of chemical compounds with the same molecular formula
116212) may refer to: Disaccharides Allolactose Cellobiose Galactose-alpha-1,3-galactose Gentiobiose (amygdalose) Isomaltose Isomaltulose Kojibiose Lactose
C12H22O11
Structural carbohydrate in the cell walls of land plants and some algae
chemical component of pectin is galacturonic acid (a sugar acid derived from galactose). Commercially produced pectin is a white-to-light-brown powder, produced
Pectin
Enzyme
hydrolase enzyme that catalyses the hydrolysis of terminal, non-reducing α-D-galactose residues in α-D-galactosides, including galactooligosaccharides (GOS)
Α-Galactosidase
Class of enzymes
D-mannosyl-L-rhamnosyl-D-galactose-1-diphospholipid ⇌ {\displaystyle \rightleftharpoons } CDP + D-abequosyl-D-mannosyl-rhamnosyl-D-galactose-1-diphospholipid
Abequosyltransferase
Class of monosaccharides
Examples of aldoses include glyceraldehyde, erythrose, ribose, glucose and galactose. Ketoses and aldoses can be chemically differentiated through Seliwanoff's
Aldose
Chemical compound
4-Chloro-4-deoxygalactose (chlorodeoxygalactose) is chlorinated derivative of the sugar galactose. It is one of the two components comprising the disaccharide sucralose
4-Chloro-4-deoxygalactose
Biochemical process in living organisms
consists of one molecule of glucose and one molecule of galactose. After separation from glucose, galactose travels to the liver for conversion to glucose. Galactokinase
Carbohydrate_metabolism
Class of enzymes
(EC 2.4.1.134) is an enzyme that catalyzes the chemical reaction UDP-galactose + 4-beta-D-galactosyl-O-beta-D-xylosylprotein ⇌ {\displaystyle \rightleftharpoons
Galactosylxylosylprotein 3-beta-galactosyltransferase
Galactosylxylosylprotein_3-beta-galactosyltransferase
Operon
gal operon is a prokaryotic operon, which encodes enzymes necessary for galactose metabolism. Repression of gene expression for this operon works via binding
Gal_operon
Subtype of carbohydrates
Deoxyribose, or 2-deoxy-D-ribose, a constituent of DNA Fucose, or 6-deoxy-L-galactose, main component of fucoidan of brown algae, and present in N-linked glycans
Deoxy_sugar
Polysaccharides formed from mannose
sugars, galactose and glucose. They are often branched (unlike cellulose). Plant mannans have β(1-4) linkages, occasionally with α(1-6) galactose branches
Mannans
Protein family
(EC 2.4.1.228) is an enzyme that catalyzes the chemical reaction UDP-galactose + beta-D-galactosyl-(1->4)-D-glucosylceramide ⇌ {\displaystyle \rightleftharpoons
Lactosylceramide 4-alpha-galactosyltransferase
Lactosylceramide_4-alpha-galactosyltransferase
Fermented milk drink made from kefir grains
called kefiran, which is composed of equal proportions of glucose and galactose. It resembles small cauliflower grains, with color ranging from white
Kefir
Hereditary metabolic disorder
disorder marked by an accumulation of galactose and galactitol secondary to the decreased conversion of galactose to galactose-1-phosphate by galactokinase. The
Galactokinase_deficiency
6-carbon simple sugar
D-Galactose 110 D-Talose 111 Of these D-isomers, all except D-altrose occur in living organisms, but only three are common: D-glucose, D-galactose, and
Hexose
Rare monosaccharide not fermentable by yeast
d- nor l-forms are fermentable by yeast. D-Gulose is a C-3 epimer of D-galactose and a C-5 epimer of L-mannose. Merck Index, 11th Edition, 4490 https://iupac
Gulose
Polysaccharides found in animal tissue
glycosaminoglycan keratan, where, in place of the uronic sugar there is a galactose unit. GAGs are found in vertebrates, invertebrates and bacteria. Because
Glycosaminoglycan
Molecules which are non-mirror image, non-identical stereoisomers
Glucose and galactose, for instance, are diastereomers. Even though they share the same molar weight, glucose is more stable than galactose. This difference
Diastereomer
Polysaccharide gum used as a food additive and thickener
Xylulose Deoxy sugars Deoxyribose Hexoses Aldohexoses Allose Altrose Galactose Glucose Gulose Idose Mannose Talose Ketohexoses Fructose Psicose Sorbose
Xanthan_gum
Class of enzymes
(EC 2.4.1.241) is an enzyme that catalyzes the chemical reaction UDP-galactose + 3-(beta-D-galactosyl)-1,2-diacyl-sn-glycerol ⇌ {\displaystyle \rightleftharpoons
Digalactosyldiacylglycerol synthase
Digalactosyldiacylglycerol_synthase
Chemical compound
disaccharide similar to lactose. It consists of the monosaccharides D-galactose and D-glucose linked through a β1-6 glycosidic linkage instead of the
Allolactose
Organic compound that consists only of carbon, hydrogen, and oxygen
Lactose is a disaccharide found in animal milk. It consists of a molecule of D-galactose and a molecule of D-glucose bonded by beta-1-4 glycosidic linkage.
Carbohydrate
Class of enzymes
enzyme that catalyzes the chemical reaction sn glycerol 3-phosphate + UDP-galactose UDP 1-α-D-galactosyl-sn-glycerol 3-phosphate The two substrates
Sn-glycerol-3-phosphate 1-galactosyltransferase
Sn-glycerol-3-phosphate_1-galactosyltransferase
InterPro Family
6-phospho-β-D-galactoside + H2O ⇌ {\displaystyle \rightleftharpoons } 6-phospho-D-galactose + an alcohol This enzyme belongs to the family of hydrolases, specifically
6-phospho-β-galactosidase
Chemical compound
meso-galactaric acid) is an aldaric acid obtained by nitric acid oxidation of galactose or galactose-containing compounds such as lactose, dulcite, quercite, and most
Mucic_acid
Class of chemical compounds
A galactoside is a glycoside containing galactose. The H of the OH group on carbon-1 of galactose is replaced by an organic moiety. Depending on whether
Galactoside
Index of chemical compounds with the same name
Alpha-gal may refer to: Alpha-galactosidase, an enzyme Galactose-alpha-1,3-galactose, a carbohydrate also known as Galili antigen Alpha-gal syndrome,
Alpha-gal
Vegetable gum from the guar bean, Cyamopsis tetragonoloba
composed of the sugars galactose and mannose. The backbone is a linear chain of β 1,4-linked mannose residues to which galactose residues are 1,6-linked
Guar_gum
hydro-lyase. This enzyme participates in galactose metabolism. DE LEY J, DOUDOROFF M (1957). "The metabolism of D-galactose in Pseudomonas saccharophila". J.
Galactonate_dehydratase
Class of enzymes
(EC 2.4.1.156) is an enzyme that catalyzes the chemical reaction UDP-galactose + (indol-3-yl)acetyl-myo-inositol ⇌ {\displaystyle \rightleftharpoons
Indolylacetyl-myo-inositol galactosyltransferase
Indolylacetyl-myo-inositol_galactosyltransferase
Class of enzymes
galactosyltransferase (EC 2.4.1.272, UDP-galactose:SBMG-galactosyltransferase, UGT73P2, GmSGT2 (gene), UDP-galactose:soyasapogenol B 3-O-glucuronide
Soyasapogenol B glucuronide galactosyltransferase
Soyasapogenol_B_glucuronide_galactosyltransferase
French biologist
glucose and then placed in galactose lose their 'galactozymase'. He noted that it took time for the yeasts to ferment galactose and this "adaptation" took
Frédéric_Dienert
Long-chain polymer of a N-acetylglucosamine
Xylulose Deoxy sugars Deoxyribose Hexoses Aldohexoses Allose Altrose Galactose Glucose Gulose Idose Mannose Talose Ketohexoses Fructose Psicose Sorbose
Chitin
Chemical compound
into UDP-galactose and UDP-glucuronic acid, which can then be used as substrates by the enzymes that make polysaccharides containing galactose and glucuronic
Uridine_diphosphate_glucose
Natural plant polysaccharides
Xylulose Deoxy sugars Deoxyribose Hexoses Aldohexoses Allose Altrose Galactose Glucose Gulose Idose Mannose Talose Ketohexoses Fructose Psicose Sorbose
Inulin
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE
GALACTOSE